class_docstr: Sigmoid activation followed by a sigmoid cross entropy loss.
class_docstr_tok: ["Sigmoid","activation","followed","by","a","sigmoid","cross","entropy","loss","."]
code: def check_type_forward(self, in_types):
      type_check._argname(in_types, ("x", "t"))
      x_type, t_type = in_types
  
      type_check.expect(
          x_type.dtype.kind == "f",
          t_type.dtype.kind == "i",
          x_type.shape == t_type.shape,
      )
  
file_path: chainer/chainer/functions/loss/sigmoid_cross_entropy.py
imports: import chainer
  from chainer import backend
  from chainer import function_node
  from chainer.functions.activation import sigmoid
  from chainer import utils
  from chainer.utils import type_check
label_desc: Use image node_id 2 for calling the SigmoidCrossEntropy obj's underlying member method code with example usage: obj.check_type_forward(in_types) without return types